/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.store;

// 记录着从Broker服务器上拉取MessageExt对象返回状态枚举值
public enum GetMessageStatus {

    FOUND, // MessageExt对象

    NO_MATCHED_MESSAGE, // isMatchedByCommitLog | isMatchedByConsumeQueue = false;

    MESSAGE_WAS_REMOVING, // CommitLogSelectMappedBufferResult = null;

    OFFSET_FOUND_NULL, // ConsumeQueueSelectMappedBufferResult = null;

    OFFSET_OVERFLOW_BADLY, // GetOffset > ConsumerQueueMaxOffset;

    OFFSET_OVERFLOW_ONE, // GetOffset == ConsumerQueueMaxOffset;

    OFFSET_TOO_SMALL, // GetOffset < ConsumerQueueMinOffset;

    NO_MATCHED_LOGIC_QUEUE, // topic-queueId-consumeQueue = null;

    NO_MESSAGE_IN_QUEUE, // consumeQueueMaxOffset = 0;
}
